highcharts
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JavaScript charting framework
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JavaScript
/* *
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
* */
;
import SeriesRegistry from '../../../Core/Series/SeriesRegistry.js';
const { sma: SMAIndicator } = SeriesRegistry.seriesTypes;
import U from '../../../Core/Utilities.js';
const { isArray, merge } = U;
/* *
*
* Functions
*
* */
// Utils:
/**
* @private
*/
function sumArray(array) {
return array.reduce(function (prev, cur) {
return prev + cur;
}, 0);
}
/**
* @private
*/
function meanDeviation(arr, sma) {
const len = arr.length;
let sum = 0, i;
for (i = 0; i < len; i++) {
sum += Math.abs(sma - (arr[i]));
}
return sum;
}
/* *
*
* Class
*
* */
/**
* The CCI series type.
*
* @private
* @class
* @name Highcharts.seriesTypes.cci
*
* @augments Highcharts.Series
*/
class CCIIndicator extends SMAIndicator {
/* *
*
* Functions
*
* */
getValues(series, params) {
const period = params.period, xVal = series.xData, yVal = series.yData, yValLen = yVal ? yVal.length : 0, TP = [], CCI = [], xData = [], yData = [];
let CCIPoint, p, periodTP = [], len, range = 1, smaTP, TPtemp, meanDev, i;
// CCI requires close value
if (xVal.length <= period ||
!isArray(yVal[0]) ||
yVal[0].length !== 4) {
return;
}
// Accumulate first N-points
while (range < period) {
p = yVal[range - 1];
TP.push((p[1] + p[2] + p[3]) / 3);
range++;
}
for (i = period; i <= yValLen; i++) {
p = yVal[i - 1];
TPtemp = (p[1] + p[2] + p[3]) / 3;
len = TP.push(TPtemp);
periodTP = TP.slice(len - period);
smaTP = sumArray(periodTP) / period;
meanDev = meanDeviation(periodTP, smaTP) / period;
CCIPoint = ((TPtemp - smaTP) / (0.015 * meanDev));
CCI.push([xVal[i - 1], CCIPoint]);
xData.push(xVal[i - 1]);
yData.push(CCIPoint);
}
return {
values: CCI,
xData: xData,
yData: yData
};
}
}
/* *
*
* Static Properties
*
* */
/**
* Commodity Channel Index (CCI). This series requires `linkedTo` option to
* be set.
*
* @sample stock/indicators/cci
* CCI indicator
*
* @extends plotOptions.sma
* @since 6.0.0
* @product highstock
* @requires stock/indicators/indicators
* @requires stock/indicators/cci
* @optionparent plotOptions.cci
*/
CCIIndicator.defaultOptions = merge(SMAIndicator.defaultOptions, {
/**
* @excluding index
*/
params: {
index: void 0 // Unused index, do not inherit (#15362)
}
});
SeriesRegistry.registerSeriesType('cci', CCIIndicator);
/* *
*
* Default Export
*
* */
export default CCIIndicator;
/* *
*
* API Options
*
* */
/**
* A `CCI` series. If the [type](#series.cci.type) option is not
* specified, it is inherited from [chart.type](#chart.type).
*
* @extends series,plotOptions.cci
* @since 6.0.0
* @excluding dataParser, dataURL
* @product highstock
* @requires stock/indicators/indicators
* @requires stock/indicators/cci
* @apioption series.cci
*/
''; // To include the above in the js output